net/ftp/ftp_auth_cache.cc

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "net/ftp/ftp_auth_cache.h"
   6
   7 #include "base/logging.h"
   8 #include "url/gurl.h"
   9
  10 namespace net {
  11
  12 // static
  13 const size_t FtpAuthCache::kMaxEntries = 10;
  14
  15 FtpAuthCache::Entry::Entry(const GURL& origin,
  16                            const AuthCredentials& credentials)
  17     : origin(origin),
  18       credentials(credentials) {
  19 }
  20
  21 FtpAuthCache::Entry::~Entry() {}
  22
  23 FtpAuthCache::FtpAuthCache() {}
  24
  25 FtpAuthCache::~FtpAuthCache() {}
  26
  27 FtpAuthCache::Entry* FtpAuthCache::Lookup(const GURL& origin) {
  28   for (EntryList::iterator it = entries_.begin(); it != entries_.end(); ++it) {
  29     if (it->origin == origin)
  30       return &(*it);
  31   }
  32   return NULL;
  33 }
  34
  35 void FtpAuthCache::Add(const GURL& origin, const AuthCredentials& credentials) {
  36   DCHECK(origin.SchemeIs("ftp"));
  37   DCHECK_EQ(origin.GetOrigin(), origin);
  38
  39   Entry* entry = Lookup(origin);
  40   if (entry) {
  41     entry->credentials = credentials;
  42   } else {
  43     entries_.push_front(Entry(origin, credentials));
  44
  45     // Prevent unbound memory growth of the cache.
  46     if (entries_.size() > kMaxEntries)
  47       entries_.pop_back();
  48   }
  49 }
  50
  51 void FtpAuthCache::Remove(const GURL& origin,
  52                           const AuthCredentials& credentials) {
  53   for (EntryList::iterator it = entries_.begin(); it != entries_.end(); ++it) {
  54     if (it->origin == origin && it->credentials.Equals(credentials)) {
  55       entries_.erase(it);
  56       DCHECK(!Lookup(origin));
  57       return;
  58     }
  59   }
  60 }
  61
  62 }  // namespace net